Business Details
43 Years
experience
Emergency
services
Expert Sanitary Engineering Solutions in San Diego
Established in 1983, Dexter Wilson Engineering, Inc. has built a reputation as a leader in sanitary engineering, specializing in water, wastewater, and recycled water systems. Our team delivers comprehensive services including planning, design, and construction management for municipalities, public agencies, and private clients. With decades of collective experience, we prioritize timely project completion, technical precision, and client satisfaction. Our expertise spans hydraulic modeling, asset management, and regulatory compliance, ensuring solutions that meet evolving infrastructure demands.We maintain rigorous standards through registered professional engineers and a commitment to innovation in civil engineering practices. Our track record includes landmark projects like the Carlsbad and Vista sewer master plans, demonstrating our ability to tackle complex regional challenges. By combining technical excellence with personalized service, we aim to be a trusted partner in sustainable water resource management.
Services
Wastewater Studies
Water Design
Sewer System Management
Asset Management Plans
Hydraulic Modeling
Pump Station Design
Regulatory Compliance
Construction Management
Feasibility Studies
Pipeline Engineering
Details
- Year established: 1983
Highlights and features
- We offer 40+ years of specialized expertise in sanitary engineering.
- Our team includes registered civil engineers with regional project experience.
- We provide end-to-end services from feasibility studies to construction management.
- Our work supports major infrastructure projects across Southern California.
- We maintain rigorous technical standards with registered professional oversight.
Services
Wastewater Studies
We conduct comprehensive wastewater system analyses including master planning, hydraulic modeling, and capacity assessments. Our services help municipalities optimize infrastructure performance and prepare for future growth. Projects include regional sewer master plans and pump station evaluations.
Water Design
Our water system design covers pipelines, reservoirs, and pumping stations with focus on efficiency and reliability. We handle projects from raw water intake to distribution networks, ensuring compliance with regulatory standards and long-term operational needs.
Asset Management Plans
We develop predictive maintenance strategies for wastewater systems using condition assessments and lifecycle modeling. Our plans support financial forecasting and regulatory compliance for aging infrastructure across multiple jurisdictions.
Pipeline Engineering
We specialize in potable water and sewer pipeline design including complex crossings and pressure management. Our work incorporates seismic resilience and environmental considerations for projects ranging from local improvements to regional transmission systems.
Pump Station Design
We design custom pump stations with capacities from 850 to 21 million gallons per day. Our solutions include odor control, emergency power systems, and telemetry integration for municipal and private clients.
People
Natalie J. Fraschetti
President
Registered Civil Engineer with 20+ years in sanitary engineering. Leads firm operations and technical direction while maintaining California licensure.
Andrew M. Oven
Senior Engineer
40-year veteran in sanitary engineering with advanced degree from UC Berkeley. Provides technical oversight and mentorship across major projects.
Dexter S. Wilson
Founder
Established firm in 1983 after academic background in chemistry and civil engineering. Maintains active role in technical standards and client relations.
Steven J. Henderson
Project Engineer
11-year specialist in sanitary engineering with Cal Poly education. Focuses on municipal infrastructure design and construction support.
Fernando Fregoso
Design Engineer
7-year engineer with expertise in water system design. Applies technical skills to pipeline and pump station projects across Southern California.
Questions
What engineering services do you specialize in?
We specialize in water, wastewater, and recycled water system planning, design, and management for public and private clients.
How long have you served the San Diego region?
We've provided engineering services since 1983, completing major projects in Carlsbad, Vista, San Diego, and surrounding areas.
Do you handle large-scale infrastructure projects?
Yes, we've designed systems serving populations up to 100,000 with pipelines, treatment plants, and regional distribution networks.
Are your engineers licensed professionals?
All project engineers are registered civil engineers in California with specialized wastewater and water system expertise.
Can you assist with regulatory compliance?
We prepare required documentation and management plans to meet state and federal wastewater and water quality regulations.
What geographic areas do you serve?
Primarily Southern California, including San Diego, Orange, Riverside, and San Bernardino counties for water infrastructure projects.
